package com.cz.run.config.aop;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @author CAIYJ
 * @Description: TODO(日志切面)
 * @Date:2018/5/15 11:04
 */
@Aspect
@Component
public class WebLogAspect {
    private static final Logger loggger = LogManager
            .getLogger(WebLogAspect.class);

    @Pointcut("execution(public * com.cz.run.web..*.*(..))")
    /**两个..代表所有子目录，最后括号里的两个..代表所有参数**/
    public void logPointCut() {
    }

    @Before("logPointCut()")
    public void doBefore(JoinPoint joinPoint) throws Throwable {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder
                .getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        // 记录下请求内容
        loggger.info("请求地址 : " + request.getRequestURL().toString());
        loggger.info("HTTP METHOD : " + request.getMethod());
        loggger.info("IP : " + request.getRemoteAddr());
        loggger.info("CLASS_METHOD : "
                + joinPoint.getSignature().getDeclaringTypeName() + "."
                + joinPoint.getSignature().getName());
    }

    /**
     * returning的值和doAfterReturning的参数名一致
     *
     * @param ret
     * @throws Throwable
     */
    @AfterReturning(returning = "ret", pointcut = "logPointCut()")
    public void doAfterReturning(Object ret) throws Throwable {
        // 处理完请求，返回内容
    }

    @Around("logPointCut()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        long startTime = System.currentTimeMillis();
        // ob 为方法的返回值
        Object ob = pjp.proceed();
        loggger.info("耗时 : " + (System.currentTimeMillis() - startTime) + "ms");
        return ob;
    }
}
